Question
Factorise: $x^2-10 x+24$
✓
Answer
$x^2-10 x+24$
$=x^2-6 x-4 x+24$
${24 = (-6) × (-4), -10 = -6 - 4}$
$= x(x - 6) - 4(x - 6) $
$= (x - 6)(x - 4)$
$=x^2-6 x-4 x+24$
${24 = (-6) × (-4), -10 = -6 - 4}$
$= x(x - 6) - 4(x - 6) $
$= (x - 6)(x - 4)$
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